| 摘要 |
A method of constructing an elongate hollow structure (e.g. pipe 10) comprising a radially inner portion (11) and a radially outer portion (12), with the two portions merging together to provide an integrated tubular wall structure. The method comprises: providing the radially inner portion; providing the radially outer portion about the radially inner portion; and expanding the inner portion. The outer portion comprises an outer tube (30) of fibre reinforced composite construction surrounded by a flexible outer casing (31). There is a space between the radially inner portion and the flexible outer casing. Gas between the inner portion and outer portion is arranged to be expelled as the inner portion is expanded as a consequence of the expansion of the inner portion. |
